Tilt-out magnetic slidable sash guide



Dec. 17, 1968 w. o. JOHNSON TILT-OUT MAGNETIC SLIDABLE SASH GUIDE INVENTOR. WALDO O. JGHNSON @www @Mm ATTYS.

United States Patent Gftce 3,416,260 Patented Dec. 17, 1968 3,416,260 TILT-OUT MAGNETIC SLIDABLE SASH GUIDE Waldo O. Johnson, Wooster, Ohio, assignor to Weather- Seal, Inc., N. Barberton, Ohio, a corporation of Ohio Filed June 20, 1966, Ser. No. 558,639 9 Claims. (Cl. 49404) This invention relates to a window assembly having tiltable and slidable sashes wherein separate magnet means positioned in the side rail of the sash and in the sash runner strip of the jamb liner form a magnetic inter-lock to hold the sash in a vertical position in the window assembly.

It has been recognized, for example, by United States Patent No. 3,199,154, that it is desirable to provide tiltable and/ or removable sashes in homes and similar buildings. In nearly all window assemblies, it is usually quite difcult to reach the outer surfaces of the window sashes for cleaning action, and it has proven that tiltable windows are especially desirable since they are easily accessible for cleaning when still positioned in the window assembly. It has been found, however, that one of the main problems in a tiltable window, such as that disclosed by U.S. Patent No. 3,199,154, is to provide an effective sash guide for the tiltable window assembly wherein the sash is firmly held in a vertical position by the sash guide, but wherein it is easy for a woman to tilt the sash away from the sash guide for cleaning purposes.

It is the general object of the present invention to provide an eifective combination in a tiltable sash window assembly of a sash side rail and a sash guide wherein the sash is rmly retained in a vertical slide position during standard sash operation, but wherein the sash, for cleaning purposes, is easily separated from the sash guide so that the sash can be tilted out of vertical slide position.

It is another object of the present invention to provide magnet means in both the side rails of the sash and in the sash guide, so that a positive magnetic attraction between the two magnet means will magnetically interlock the side rails of the sash in a vertical position in the window assembly, but will permit easy movement of the sash out of its operative position.

Another object of the present invention is to provide laterally protruding pivot pin means in the sashes which are seated in receiving sockets in the sash guide to position the sashes for controlled pivotal movement in the window assembly.

In the drawings, FIG. 1 is a fragmentary, perspective view of a preferred embodiment of the invention;

FIG. 2 is a fragmentary horizontal section of the embodiment illustrated in FIG. l, particularly illustrating the lower sash in a tilted out position;

FIG. 3 is a fragmentary horizontal section similar to FIG. 2, illustrating both the upper and lower sashes in a vertical slide position;

FIG. 4 is a fragmentary elevation of the window assembly of the invention, particularly illustrating a lock plate member which is adapted to removably engage with the side rail ofthe sash; and

FIG. 5 is a fragmentary vertical section of the sash of the window assembly, particularly illustrating the pivot means provided to position the sashes for pivotal movement about the sash guides.

In general, the invention contemplates the provision of a window assembly having a pair of jamb liners, an elongate runner strip engaged by each jamb liner for sliding movement therein, a sash having a pair of side rails having face-to-face contact with a respective ru'nner strip, pivot pins provided on the sash which are seated in receiving sockets in the runner strips to position the sashes in the runner strips for controlled pivotal movement thereabout, and separate magnet means positioned in the runner strips and the side rails which have a positive magnetic attraction to each other so as to elfect a magnetic interlock to hold the side rails of the sash in a sliding operative position in the window assembly.

Referring to the drawings, and particularly FIGS. 1-3, the window assembly of the invention is indicated as a whole by the numeral 10. The window assembly 10 basically consists of an upper sash 12 and a lower sash 14 which are positioned for vertical sliding movement in a window opening in a wooden frame or equivalent support 16. Mounting the sashes 12 and 14 in the window opening are a pair of side jambs or jamb liners 18 and 18a which, like all basic components of the window assembly, are made from an extruded metal, such as aluminum, so that the special contours and shapes of the components can readily be formed. I amb liners 18 and 18a are identical to each other with the jamb liner 18 being positioned on one side of the sashes 10 and 12, and with the jamb liner 18a being positioned on the other side thereof. Since there are a number of components in the window construction which are matched with an identical member on the other side of the sashes 10 and 12, for purposes of clarification and to avoid confusion, only one identification number will be given to these components.

Engaged by each jamb liner 18 and 18a for vertical sliding movement therein are a pair of vertically extending sash guides or sash runner strips 20 and 22. The runner strips slidably engage and ride on seating -strips 23 mounted to the jamb liners 18 and 18a. Runner strips 20, as best illustrated by FIG. 2, align with and have loose face-to-face contact with a respective side rail of the upper sash 12. Runner strips 22 have loose faceto-face contact with a respective side rail of the lower sash 14.

In order to allow the sashes 12 and 14 to be tilted out of and away from the runner strips 20 and 22, respectively, each sash has positioned therein a pair of laterally protruding pivot pins or pivot pin means 24 and 24a which are received in an open channel portion 26 provided at the vertical lower margins of each sash. Pivot pins 24, as best illustrated by FIGS. 2 and 3, are seated in receiving sockets 28 provided in runner strips 20 and 22. The pivot pins 24 and 24a act to position sashes 12 and 14 in runner strips 20 and 22, respectively, with the pivot pins allowing controlled pivotal movement of each sash with respect to the runner strips associated therewith.

In order to hold the sashes 12 and 14 in a vertical position and in alignment with runner strips 20 and 22, a magnet means or an elongate bar magnet 30 is received in each of the vertically extending side rails of the sashes 12 and 14, and a second magnetic means or elongate bar magnet 32 is received and held by each of the runner strips 20 and 22. Both magnets 30 and 32 run the entire length of the side rails and the runner strips in which they are received, and they effect a magnetic interlock between the side rails of the sashes 12 and 14 and the runner strips 20 and 22; as is best indicated by FIGS. 1 and 2.

Bar magnets 30 and 32 are magnetized so that two magnetic fields are set up adjacent each lateral side of the faces of the bar magnet and extend the length thereof. As is best illustrated by FIG. 2, a north magnetic pole 33 and a south magnetic pole 34 create lines of force therebetween on one side of the bar magnet 30 and 32, and a north magnetic pole 33 and south magnetic pole 34 create lines of force therebetween on the other side of the bar magnets 30 and 32.

When the sashes 12 and 14 are positioned in a vertical slide position, as illustrated by FIG. 2, the north and south poles of the two bar magnets 30 and 32 will attract each other, thereby forcing the side rails of the sashes 12 and 14 into a mechanical interlock with the runner strips 20 and 22 respectively. Under vertical slide movement of the sashes while in the position shown in FIG. 2, the magnetic attraction between the magnets 30 and 32 and the seating of pivot pins 24 and 24a in the receiving sockets 28, will cause the runner strips 20 and 22 to move with the sashes when they are raised and lowered in the window assembly.

When it is desired to tilt the sashes out of the vertical slide position, all that is necessary to accomplish such is to provide a slight pushing force on first the lower sash and then the upper sash which is sufficient to overcome the positive attactionbetween the north and south magnetic poles of the bar magnets 30 and 32. As this magnetic force is overcome, the sashes will begin to pivot about the pivot pins 24 and move away from their respective runner strips, either 20 or 22. As this pivotal action begins to occur, north magnetic pole 33 of the bar magnet 30 will begin to slide over like north magnetic pole 33 of the bar magnet 32 with the resultant magnetic repellent force caused thereby tending to force the side rails away and apart from their respective runner strips 20 or 22, making it very easy to tilt the sash away from its respective runner strip and out of the vertical.

In order to help the magnets retain the sash in a vertical slide position during normal window operation, a lock plate 35 is pivotally mounted on the top extremity of each of the runner strips 20 and 22. The lock plate 3S, as best illustrated by FIG. 4, is hinge connected to each runner strip by means of a pivot` pin 36 and adownwardly extending flange 38 forming an integral portion of the lock plate 35 is adapted to drop into a slot 39 provided in the top margin of each sash, thereby locking the runner strips to a respective side rail. During normal vertical slide operation of the sashes 12 and 14, the lock plate 35, as illustrated by FIG. 2, will be snapped down into engagement with the side rail of the sash, with the tlange 38 extending into a slot 39.

The lock plate 35 also is adapted to engage with one or more vertically spaced suitable xed stops 40 which are provided on the jamb liners 18 and 18a after the llock plate 35 has been disengaged from each side rail and moved to the position indicated by FIG. 4. As is illustrated by FIG. 4, suitable balance means, such as spring and cable means 42 normally urge the runner strips 20 and 22 in an upward direction so that the biasing of the lock plate 35 against the xed stop 40 on the side jambs 18 and 18a prevents the runner strips 20 land 22 from sliding upwardly after the lock plate 35 has been disengaged from the sashes 10 and 12 and they have been tilted out of the vertical, Ias illustrated by FIG.2.

Referring to FIG. 2, a pair of elongate spring means 44 and 46 are usually positioned between the jamb liner 18a and the runner strips 20 and 22, respectively. These spring means normally urge the runner strips 20 and 22 inwardly so as to help position the sashes in the window assembly. Some freedom for laterally outward movement is normally provided for the runner strips.

It should be understood that the magnets 30 and 32 provide the main interlock to hold the sashes in a vertical slide position in the runner strips, and the main purpose of the lock plate 35 is only to prevent the sashes from being -accidentally pushed away from the runner slides 20 and 22 when such is not intended.

The bar magnets 30 and 32 may be made from any suitable material such as a resilient or flexible material that has magnetic particles embedded therein or the magnets may be made from metal, or from ceramic material with magnetic particles therein. The bar magnets in all events have elongate poles extending the length thereof and the poles are formed to provide magnetic `attraction therebetwen as operatively positioned.

In some instances, it may -be preferred to use only one magnetically positioned sash in a window assembly. The sash or sashes may be removably positioned in the window assembly and hence the pivot means may be eliminated in some instances.

From the foregoing description, it can be readily visualized that the specific construction `of the side rails of the sashes and the sash guides provides a tilt-out window assembly wherein the sashes are firmly held in a vertical slide position during normal window operation, but wherein the sashes can readily be disengaged from the sash guides when desired.

While a certain representative embodiment and details have been shown for the purpose of illustrating the invention, it will be apparent to those skilled in this art that various changes and modications may be made therein without departing from the spirit or scope of the invention.

What is claimed is:

1. In a window assembly, the combination of:

a pair of side jambs,

la pair of vertically extending runner strip means engaged by each of said pair of Side jambs for vertical sliding movement therein,

an upper and a lower sash each having a pair of vertically extending side rails having face-to-face contact with a respective runner strip means,

laterally protruding pivot pin means provided in said sashes and being seated in receiving sockets in said runner strip means to position said sashes in s-aid runner strip means for controlled pivotal movement thereabout,

magnet means positioned in each of said runner strip means, and

second magnet means positioned in each of said side rails having a positive magnetic attraction to said lfirst magnet means whereby said first magnet means and said second magnet means magnetically interlock to hold the side rails of said sashes in a vertical position in said runner strip means.

2. The combination according to claim 1 with the combination including lock plate means pivotally hinged to the top portion of said runner strip means and being removably engaged with the side rail of said sash to retain the sash in la vertical slide position whereby said runner strip means move with said sashes when they are raised or lowered in the window assembly.

3. The combination according to claim 2 wherein spring means normally urge said runner strip means in an upward direction and wherein said lock plate means is biased against a stop on said side jamb to prevent said runner strip means from sliding upwardly after said lock plate means is disengaged from the side rail of said sash and a said sash is pivoted about said runner strip means.

4. The combination according to claim 1 wherein said laterally protruding pivot pin means include a -pin slidably received in an open channel portion provided at the vertically lower margins of said sashes.

5. The combination according to claim 1 wherein said first magnet means land said second magnet means are elongate bars running the entire -length of said runner strip means and said side rails, respectively, and wherein the north magnetic pole of said bar is adjacent one lateral side thereof Iand the south magnetic pole of said bar is adjacent the other lateral side thereof, which poles extend the length of said bars.

6. The combination according to claim 5 wherein said rst magnet means and said second magnet means are received, respectively, in hollow channels of said runner strip means and said side rails so that as said sash is pivoted about said pivot pin means, the like poles of said irst magnet means and said second magnet means are slid over each other with the magnetic repelling force caused thereby tending to force said runner strip means apart vfrom a respective side rail whereby said sash can easily be tilted out of the vertical.

7. In a window assembly, the combination of:

a pair of side jambs,

a pair of vertically extending runner strip means engaged by each of said pair of side jambs for vertical sliding movement therein,

a lower sash having a pair of vertically extending side rails having face-to-face contact with a respective runner vstrip means,

first elongate magnet means having elongate poles eX- tending the length thereof positioned in each of said runner strip means, and

second elongate magnet means having elongate poles extending the length thereof positioned in each of said side rails and having a positive magnetic attraction to said rst magnet means whereby said rst magnet means and said second magnet means magnetically interlock to hold the side rails of said sashes in a vertical position in said runner strip means, said `magnet means have flat face sur-faces positioned immediately adjacent each other, and lock means are provided to secure said sash to one of said runner strip means.

8. A window assembly yas in claim 7 where said magnet means are iexible and unlike poles in `said rst and second magnet means are adjacent each other.

9. A window assembly as in claim 7 Where laterally lprotruding pivot pin means are provided in said sashes and are seated in receiving sockets in said runner strip means to position said sash in said runner strip means for controlled pivotal movement thereabout.

References Cited UNITED STATES PATENTS 2,102,589 12/1937 Frey 499-194 X 2,990,589 7/1961 Lynch 49-176 3,334,442 8/1967 Boettcher 49--404 X DAVID J. WILLIAMOWSKY, Primary Examiner.

J'. K. BELL, Assistant Examiner.

U.S. Cl. X.R. 49-176, 414, 168 

1. IN A WINDOW ASSEMBLY, THE COMBINATION OF: A PAIR OF SIDE JAMBS, A PAIR OF VERTICALLY EXTENDING RUNNER STRIP MEANS ENGAGED BY EACH OF SAID PAIR OF SAID JAMBS FOR VERTICAL SLIDING MOVEMENT THEREIN, AN UPPER AND A LOWER SASH EACH HAVING A PAIR OF VERTICALLY EXTENDING SIDE RAILS HAVING FACE-TO-FACE CONTACT WITH A RESPECTIVE RUNNER STRIP MEANS, LATERALLY PROTRUDING PIVOT PIN MEANS PROVIDED IN SAID SASHES AND BEING SEATED IN RECEIVING SOCKETS IN SAID RUNNER STRIP MEANS TO POSITION SAID SASHES IN SAID RUNNER STRIP MEANS FOR CONTROLLED PIVOTAL MOVEMENT THEREABOUT, MAGNET MEANS POSITIONED IN EACH OF SAID RUNNER STRIP MEANS, AND SECOND MAGNET MEANS POSITIONED IN EACH OF SAID SIDE RAILS HAVING A POSITIVE MAGNETIC ATTRACTION TO SAID FIRST MAGNET MEANS WHEREBY SAID FIRST MAGNET MEANS AND SAID SECOND MAGNET MEANS MAGNETICALLY INTERLOCK TO HOLD THE SAID RAILS OF SAID SASHES IN A VERTICAL POSITION IN SAID RUNNER STRIP MEANS. 